@sj_zero @kaia Apparently not. We probably need a small child to explain in detail, but:
pterosaurs and dinosaurs can be distinguished by way of their bones. Skeletally, the two groups diverged about 250 million years ago, leading to a number of physical differences, most notably in their appendages: while dinosaurs had an empty hole in their hip socket and a long crest in their upper arm bone, pterosaurs had neither.
https://www.britannica.com/story/why-are-pterodactyls-not-dinosaurs